Question about 2001 Dodge Ram 2500 Truck
Abs activing all the time when stoping no light on no codes
Before you start trying to removing the hubs and sensors . make sure the brake caliper pistons are free to move back and forward , In the shop I have found some to be frozen and others to be sticky and not releasing causing all kinds of brake faults.
Posted on Nov 12, 2014
Dosge has had issues in the past with wheel bearings. The problem sounds like a front speed sensor which if you have a 4wd come attached to new hubs. Sometimes rust and debris can become lodged between the hub and the sensor, if you are savvy you may be able to remove and reinstall the sensor without changing out these pricy hubs. I think that the truck may be getting the wrong signal from one of these sensors. Like I stated, the front two are located on the hubs and I believe on that year ram the sensor is located on the rear diff. People say these hubs are nearly impossible to get off. I have found that if you use a socket and extension, you can actually place the tool between the frame and the hub and use the power steering to literally pop the hub right off considering you were able to loosen the bolts. This is a project for somebody with some patience as rusty Rams can be a bear to fix. Please keep in mind that you may be able to change just the sensor. Of course, check the wiring and grounds to each unit as they can get caught up and you could just have a faulty ground. I know I am leading you in a few directions but I am sure that with patience and perserverence you can find and tackle this project. Good luck and let us know if you find your problem.
Posted on Nov 12, 2014
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Posted on Jan 02, 2017
I had the same problem and it turned out to be one of the front speed sensors and the rear speed sensor as well. If you get a chance to look at all the speed sensors make sure the wires on the front aren't burnt from hot brakes. I have an 01 3500 4X4 and it was a pain to change the front sensor but the rear sensor took about 5-10 minutes, it's located in the middle of of the rear axle right on top. I bought both of mine on Ebay and cut the price in half.
Posted on Aug 22, 2009
I am having the same problem. I replaced the speed sensor on the rear diff. and the problem went away but when i started it the next day the problem came back. If you figure it out let me know.
Posted on Nov 22, 2009
check the sensors and connections may have loosened or knocked one loose if they look ok than have truck scanned most auto stores such as auto zone/advanced auto scan for free the trouble code will narrow the problem
Posted on Mar 24, 2010
The below test is generic, but gives you a general idea how to test the sensor. Most shops skip to the resistance test (at the bottom), if they do any test at all. A new sensor is $17 at autozone. Let me know if you have any questions.
A defective vehicle speed sensor may cause different problems depending on the computer output control functions. A defective vehicle speed sensor (VSS) may cause improper converter clutch lockup, improper cruise control operation, and inaccurate speedometer operation.
Posted on Dec 13, 2010
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